Some I can recall:

FIDO: F#$% It Drive On (platoon motto and mascot)
BOHICA: Bend Over Here It Comes Again (platoon motto)
FO: Forward Observer; Fine Officer, F$%^ Officer; or Fine Day
HOYAH: Mulit meaning: ranging from okay, yep right, Oh F#$% here we go again, F#$& U
JAFO: Just Another F$%^g Forward Observer
Dog and Pony Show: A spit and polish show for the Brass
Butter Bar: 2LT
FUBAR: F*&% Up Beyond Repair
US Army's Ma Bell: my platoon's saying do to our main weapons long range, we were a TOW II (Heavy Anti-Tank Plt)
Grunt: Infantry
Navy's Bell boys: USMC
Mop Patrol: Miltary Police
Tube Jerkers: Mortar crewmember
String Jerkers: Field Artillery

Tango Uniform--Tits Up (broken vehicle or equipment)
Bravo Sierra--Bulls***
Non-Mechanical Pop Up Targets--Infantry

I'm not in the military, but I have some to share.
These are Pseudo-military.

Two mounties in a canoe - Civvie slang for the Canadian Navy.

From WWIIOL (Online WWII game I play)
cc - Click-Click - used for Copy, like two mike clicks are used for copy by the USAF
Zippo/Ronso - Cruiser A13 - as an infantry player I am usually passed by this tank as I slog along, then pass their brewing hulk after they got smoked by some ambushing 88 or Panzer.
Fast Mover - Opel Blitz truck.
Pig - BF 110
Run-Oh-Nine - BF 109 - flying a 1940's Hurrican vs. a booming and zooming 109 can be a pain.
Blue-Tagger - anyone not in my squad - Players on my team that aren't in my squad have blue names, my squaddies have green names.
Camel - Ca Mle 32 20mm AAA
Sapper-bait - any tank that isn't moving. Infantry with satchel charges will usually find and destroy them.

and my personal favorite because I started it:
AIM CLEAR - Address, Introduce, Message, Clear. When giving a radio transmission you say who you're talking to (address), say who you are (Introduce), give your message (Message), then give your clear, Clear/Over/Out.

Yes, not military, but I felt left out.

We had a few at VMI that are strange

Roast beast
Chicken ala s++t
Sinks---bathrooms
stoops--floors
stoopys--janitors
gim--sicklist
gim rider--pu++y
step off--on strike
drum out--kicking an honor code violator out
midnight bongos--the drum beat when an honor code violator was being kicked out
ameoba--a giant plastic bag filled with wate rand shredded toilet paper and paper towels carried on a sheet by 4-6 guys and dropped from great heights with an accompanying howl of OOO MEEE BAAA (boy the stoopies hated this in the morning)

In the army
Crispy critter--caught in a napalm strike
head space and timing--not thinking clearly
willy pete--white phophorus
beehive--that nasty flechette anti personnel round

Chinese jump boots: Sneakers while in BDUS...i.e. softshoe profile.
LEG. or Dirty nasty stinky leg. All non airborne qualified personnel.
"what holds up a chickens @ss?...Two dirty nasty legs"
POGUE...pronounced like pogo without the "o" All non-infantry types. "not a term of endearment"

Crunchie: What tankers call Infantry.
Pogue: What infantry calls tankers.
Air Assault: Too scared to jump, too lazy to hump...(hump...not what you do with your pillow...to walk is to hump)
GAC: "GACK" Ground Assault Convoy. That was stupid. Get into the back of a deuce, face out, and shoot back.

I tell my soldiers quite often to "suck it up and drive on" or after giving an order I'll follow with "pop smoke, move out and draw fire" but my favorite is" do it now move" As for slang Blue falcon = buddy f***er

Some terms from Oz -

ARSO - Assistant Regimental Signals Officer
Fred - F**king ridiculous eating device - the can opener/spoon combo that comes in our ration packs.
Pogue - anyone whos not Infantry
Pussa - navy pers
Lids, Jubes, Nigs - new guys
Goffa - can of soft drink
Gumpy - chocolate bar
Subie - jnr LT.
Head Shed - HQ.
Splat Cat - paratrooper
Muppet/Handbag - signaller
Drop bears - any of you guys who have been on exercise in Aust would have heard this one at some stage.
Drop Short - Artillery
Buckets/ Bucket driver - AFVs and their crews

. . . .and a couple more -
MIAD - Mindless Inbred Air Defender
WOFTAM - Waste Of F**king Time And Money

Hello!

I could remember back when we were in SCO, we were called "monkeys"...So I guess they referred each element to as monkeys...

FENDER LIZZARD-A tanker that is laid out on the fender of his tank and has become the victim of the Z monster

Hi All
Well I remember a list of Radio call code numbers that was to save time, and some were funny? The only one I can remember is 833 which was go pound sand.
Just my 2 cents?
Jeff aka beachbm2

beasting= punishment drill/pt until you want to vomit/die
maggotbag= sleeping bag
crab= any 1 from RAF
pongo= any 1 from army cause were we go the pong go's too!
long range sniper=artillary
monkey=royal millatry police
nig=new in green/new in germany
sprog=as above
fraggle -=ex rct for some one who passed out but not got his trade
trogs= rct
dewdrops RAF police
cannon fodder= infantry
loggies=royal logistics corps
slop jockeys= chefs
stab=stupid territoral army ba&$"*d
bounty hunter/bobafet=ta solider who attends minimum training for annual bounty
blanket stacker/douvet tec=storeman
Q= rqms or warrant officer not in charge of sqn
sweat=soldier with experience and time any one who's done over 5 years
biff/flid/cripple=any one with injury
scab mechanic=medic
pond life/rupert= officer
shiney arse=any 1 behind a desk
mong=new RCT recruit
junior bleeder=jnr soldier
10 week wonder= adult recruit
int &squint =army int corps
handbag= staff car driver/movement controller

LOVE this one..

And one I heard (never been in the army ) but wich I thought would be appropiate to this hobby:
RTFM-Read The F***ing Manual

Grandson.= The new Comer(Rookie)

Dawn= The day when your duty will be finished in army.

will be continued

Di Di Moi Get ...get of here
Toi Sin Loi....Sorry about that
Dinki Doi...Crazy
Butterfly GI... Too many women
Number 10 GI...Bad Guy
Number one GI...Good Guy
Two Didgit Midget.. Short Timer...Almost ready to go back to the World
The World...Home
RIP... Rear echelon puke.
Fresh Meat....new guy

These are great,thought I would add some more that I heard along the way pertaining to the Brit military.
SLAT-Slow,low aerial target=Army Air Corps
Shovel recce=toilet trip in the field
Hatch rash=injury from unsecured hatch on AFV
Corned dog=corned beef
Charlie G=Carl Gustav anti-tank weapon
Crabfat=RAF personnel
Queers on Horseback=Queens Own Hussars,cavalry regiment
I'm sure there are many more,but with age its hard to remember.....Dave

Some terms I picked up from SAF police dudes in the Philippines. They are very famous for having mistresses.

Alpha = wife/old lady/ original girl
Bravo = mistress/girlfriend
Charlie = crush
Alpha Eagle - Pretty daughter of some other Military/police presonel
Charlie Eagle - civilian version of a pretty daughter.

I'm pretty sure the first two are widely used. I can't verify the widespread use of the last three.

What I can recall:

Budgies – Air Force personnel
Canoeists / Boat boys / water legs – Navy Personnel
Meat pies / snowdrops – Military Police
Meat bombs / turds – Paratroops
White Gold – Toilet paper
Click – 1000m / 1Km ±1000yards
Tin cans – Armoured vehicles
Tin openers – AT weaponry
Glory boys – Lieutenants / paratroopers / SFs
Anal insurgent / brown ringer / shiner – A&@e creeper (also brown noser)
Dud – low IQ / stupid
NAFI – No Ambition F&*@!all Interest
ANC – Army NAFI Club
Feathers – feeling nothing towards something or somebody / too bad
Freak – anyone who volunteers
JACO / Jack Off – Just Another Confused Officer
IBM - It's Better Manual
WBO - Works Better Otherwise
Tiffy - Mechanic
Tampax Tiffy - Medic
Desk Jockey / Clueless Club - Admin personnel / HQ personnel

PS: There are only three sizes in the Army:
Too Big
Too Small
And out of stock!

One thing that I have noticed is that no matter the Country, we all have our military slang and nicknames for just about everything and everybody. The one I like the best which is International is BRO (Brother)